Westerbeke WPDS-20 Technical Manual page 79

S.14
REMOVAL OF REVERSE GEAR HOUSING ASSEMBLY FROM ENGINE
1. Remove capscrews and lockwashers that secure reverse gear housing (3)
to front end plate (5).
2. Slide entire reverse gear housing (3) straight back approximately 3 inches
until housing is clear of front plate engine gear (1) and lift reverse gear
housing assembly clear of front plate (5).
3. Remove pilot roller bearing (60) from front plate engine gear (1) if
it
remains on gear.
4. If necessary to replace front end plate (5), oil seal (22), or bearing (37)
proceed as follows:
a. Remove caps crews and lockwashers securing front end plate (5) to
engine flywheel housing.
b. Slide front end plate (5) straight back approximately two inches until
front plate engine gear (1) is clear of flywheel housing, and lift clear
of engine.
c. Remove retaining ring (36), bearing (37), retaining ring (35) and oil
seal (22).
d. Replace new oil seal and bearing if required.
REMOVAL OF GEAR CASE ASSEMBLY FROM REVERSE GEAR HOUSING
REDUCTION MODEL
1. Remove four capscrews, cover seals (33), cover (10), and gasket (4)
from reverse gear housing (3).
2. Through cover opening in reverse gear housing (3), remC"ve nut (70), lock-
washer and screw, securing adjustment nut lockspring (68) to ear of brake
band assembly (62). Remove lock spring.
3. Remove, adjustment nut (66) from reverse cam (65). Remove reverse
cam (65) from eye in yoke (34) and slide out reverse cam (65) from
reverse cam slide assembly (63).
4. Remove cross shaft (13) from reverse gear housing (3) as follows:
a. Loosen the two capscrews securing the yoke (34) to the cross
shaft (13).
b. With small end of housing toward mechanic, slide cross shaft (13)
from left to right being careful cross shaft doesn It come in contact
with operating sleeve bearing (50), or Woodruff key (26) in cross
shaft under yoke arm (34) isn It forced against cross shaft oil seal (20)
in right side of housing. Remove the two Woodruff keys from cross
shaft.
c. Slide cross shaft out of housing and remove brace (67) and lift yoke
(34) from operating sleeve (50).
5. On dipstick side of housing remove roll pin (24) securing brake band lock-
ing pin (12) that secures brake band to housing. Remove locking pin and
inspect "0" ring (23) and replace if damaged.
6. Slide brake band (62) from gear case assembly
(41)
and remove band from
front of housing.
7. Remove cotter pin and nut (18-2) from reverse gear tailshaft (2-2).
8. Support reverse gear housing (3) with front end down so that gear case
(41)
may drop free approximately two inches.
9. Press on reverse gear tailshaft (2-2) until tailshaft is free of reduction
drive gear (87).
10. Lift reverse gear housing (3) straight up until housing clears tailshaft
(2- 2).